A capacitor with stored energy 4.0 J is connected with an identical capacitor with no electric field in between. Find the total energy stored in the two capacitors.

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Solution

Stored energy of capacitor $C_{1} = 4.0 J$

When they connected, the charge shared $q_{1} = q_{2}$

So that the energy should divided

The total energy stored in each of the two capacitance is 2 J.

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A capacitor with stored energy 4.0 J is connected with an identical capacitor with no electric field in between. Find the total energy stored in the two capacitors.

Stored energy of capacitor C1=4.0 J When they connected, the charge shared q1=q2 So that the energy should divided The total energy stored in each of the two capacitance is 2 J.

Stored energy of capacitor $C_{1} = 4.0 J$

When they connected, the charge shared $q_{1} = q_{2}$

So that the energy should divided

The total energy stored in each of the two capacitance is 2 J.